What is the Mama Rock Screen designed for?
The Mama Rock Screen is a versatile grizzly rock screen built for applications such as screening rocks, scrap metal, recycled concrete, mining, aggregate processing, and soil cleaning. It's ideal for construction companies, land development, miners, farmers, and municipalities. With its 4.5 cubic yard capacity and robust steel construction, it separates debris from soil efficiently, allowing you to reuse on-site materials and reduce waste.
What are the key features of the Mama Rock Screen?
- Construction: Solid 1" steel rails for impact resistance, gusseted frame for strength
- Customizable Options: Screen spacing available in 3", 4", 5", or 6" intervals; color options in blue, red, or orange
- Removable Screen System: Optional accessory for precise screening down to 1/4" using square wire crusher screen, interchangeable without tools
- Compatibility: Designed for backhoes, small loaders, large skid steers, excavators, tractors with bucket widths up to 116". Internal width: 118"; weight: 2600 lbs
- Versatility: Can screen rocks, debris, manure, firewood, beach sand, and more. Add a vibrator for enhanced efficiency in sticky materials
- Ease of Use: No assembly required; pick up from middle cross rails using your equipment bucket. Dump material from the back for safety
What size equipment do I need to use the Mama Rock Screen?
You'll need equipment like backhoes, small loaders, large skid steers, excavators, or tractors capable of handling at least 2600 lbs. The internal width is 118", so your bucket should be no wider than 116" to fit properly. If your bucket is wider, contact us for custom modifications. For moving, simply hook the equipment bucket onto a middle cross rail and lift—it's designed for easy repositioning on job sites.
Does the Mama Rock Screen come with a removable screen, or is that extra?
The base Mama Rock Screen does not include a removable screen; it's an optional accessory. Removable screens are available in sizes from 1/4" to 3" and match your grizzly's color. They allow for more precise screening and can be swapped without leaving your equipment's seat—no bolts or tools needed.
Can I add a vibrator to the Mama Rock Screen?
Yes, vibrator installation is available as an accessory for $3,000.00, with options from Martin or Vibco brands. A vibrator improves screening efficiency, especially for wet, sticky, or fine materials by shaking debris through the rails faster. It's particularly useful in mining or aggregate operations.
Is the Mama Rock Screen suitable for wet or sticky soil conditions?
Yes, it's effective in wet or sticky conditions, but performance improves with the optional vibrator accessory, which helps prevent clogging. The sloped design allows material to flow down naturally, and the solid steel rails resist buildup. For very clay-heavy soils, we recommend testing a smaller screen size or adding the removable screen for better separation.
What is the maximum rock or material size the Mama can handle?
The Mama is built to handle rocks up to 1-2 feet in diameter without damage, based on customer feedback. The rails absorb initial impacts, but avoid dropping extremely oversized boulders directly onto the rails to prevent bending. For mining or demolition, it's proven durable with rocks, scrap metal, and concrete chunks.
How durable is the Mama Rock Screen for daily use in mining or construction?
Extremely durable—it's constructed with a gusseted steel frame to withstand abuse. Customers report running thousands of yards of material without issues. It's backed by our standard warranty (details at www.bearironworks.net/pages/warranty), covering defects. With proper use (e.g., dumping from the back), it can last for years in demanding environments like mines or job sites.
How do I use the Mama Rock Screen?
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Positioning: Place it near your source material with access to both front (for debris removal) and back (for screened soil collection).
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Moving: Use your equipment bucket to grab a middle cross rail from the inside, curl outward until secure, then lift and relocate.
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Screening: Approach from the back, raise your bucket above the top, and slowly dump material onto the rails. Fine material falls through; oversize rolls to the front. Repeat until you have a bucket of screened soil. For detailed instructions, including with removable screens, refer to our user guide or video tutorials on our website.
Can the Mama Rock Screen be customized further?
Yes! If you need different spacing, lifting eyes, fork pockets, or other modifications, contact us. We tailor solutions with quick turnaround.
What if I need to screen finer materials like topsoil?
Add the optional removable screen for precision down to 1/4". Unlike competitors limited to 1", our square wire screens provide true-to-size material. It's versatile for topsoil, sand, or even cleaning buried debris from beaches.
Is the Mama Rock Screen portable?
Yes, its design allows easy movement with equipment. At 2600 lbs, it's manageable on flat or rugged terrain. Customers have added custom fork pockets for forklift transport if needed.
How do I maintain the Mama Rock Screen?
Maintenance is minimal—clean rails after use to prevent buildup, inspect welds periodically, and store in a dry area to avoid rust. No lubrication or complex parts required. For removable screens, rinse with water if clogged.
What is the warranty on the Mama Rock Screen?
All Bear Iron Works products come with our standard warranty covering manufacturing defects. Full details are available at
www.bearironworks.com/pages/warranty. Register your product upon receipt for hassle-free support.
Can the Mama Rock Screen be used for non-soil applications?
Absolutely! Customers use it for separating rocks from manure (for clean agricultural sales), firewood from soil, trash from beach sand, or other unique uses. It's a multi-purpose separator.
How does the Mama compare to competitors?
Our streamlined design offers premium features (like no-tool screen changes and solid rails) at a fraction of the price—often half the cost of adjustable-rail grizzlies while being more versatile. See our comparison table for details on sizes from Koala to Papa.
What financing options are available?
Finance as low as $150/mo through our partners. Apply in 60 seconds with competing lenders—no impact on your credit for pre-qualification.
Is assembly required?
No, the Mama ships fully assembled and ready to use. It's made to order for quality assurance.
What colors are available, and does it affect performance?
Colors (blue, red, orange) are powder-coated for rust resistance and visibility on job sites. No impact on performance—purely aesthetic and customizable.
Can I return or cancel my order?
Orders can be canceled within 24 hours. After that, all sales are final due to the custom, heavy-duty nature of the product. See our return policy for details on defects.
How do I contact support for questions or issues?
Email
info@bearironworks.net, call (970) 210-6152, or visit our website for live chat. We're here to help with setup, customizations, or warranty claims.
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